Hudson Bay Capital Management LP
Position in AUPH — Aurinia Pharmaceuticals Inc.
CIK 1393825
STAMFORD, CT
Position in AUPH
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$1,259,700
-$96,050 QoQ
Shares Held
85,000
0.0% QoQ
Ownership
0.064%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
22 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in AUPH Over Time
Shares Held
Position Value (USD)
Derivatives in AUPH
reported options exposure · as of Dec 31, 2022CallValue
$432,000
CallShares
100,000
PutValue
$0
PutShares
0
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Biotechnology
Healthcare · as of Jun 30, 2026Hudson Bay Capital Management LP holds $565,820,903 across 77 Biotechnology names.
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
390,440 | $193,943,261 | |
| 2 | BMRN |
Biomarin Pharmaceutical Inc
|
825,002 | $47,206,614 | |
| 3 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
148,720 | $44,769,181 | |
| 4 | BNTX |
BioNTech SE
|
260,000 | $24,193,000 | |
| 5 | IMCR |
Immunocore Holdings plc
|
590,000 | $18,732,500 | |
| 6 | TECH |
BIO-TECHNE Corp
|
200,000 | $14,130,000 | |
| 7 | VIR |
Vir Biotechnology, Inc.
|
1,364,000 | $13,899,160 | |
| 8 | PTCT |
Ptc Therapeutics, Inc.
|
159,778 | $13,033,091 |
All Filings in AUPH
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,259,700 | 85,000 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $1,355,750 | 85,000 | Shares | Sole | 2026-02-13 | |
| 2025-03-31 | $804,000 | 100,000 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $763,300 | 85,000 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $2,052,400 | 280,000 | Shares | Sole | 2024-11-13 | |
| 2024-06-30 | $1,940,829 | 339,900 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $1,454,904 | 290,400 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $831,575 | 92,500 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $1,215,880 | 156,484 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $1,272,765 | 131,484 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $2,646,664 | 241,484 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $1,648,010 | 381,484 | Shares | Sole | 2023-02-14 | |
| 2022-12-31 | $432,000 | 100,000 | Call | Sole | 2023-02-14 | |
| 2022-09-30 | $752,000 | 100,000 | Call | Sole | 2022-11-14 | |
| 2022-09-30 | $2,366,423 | 314,684 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $1,773,664 | 176,484 | Shares | Sole | 2022-08-12 | |
| 2022-06-30 | $1,005,000 | 100,000 | Call | Sole | 2022-08-12 | |
| 2022-03-31 | $1,999,171 | 161,484 | Shares | Sole | 2022-05-16 | |
| 2022-03-31 | $1,238,000 | 100,000 | Call | Sole | 2022-05-16 | |
| 2021-12-31 | $2,277,852 | 99,600 | Shares | Sole | 2022-02-14 | |
| 2021-06-30 | $8,229,600 | 635,000 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $10,063,375 | 775,000 | Shares | Sole | 2021-05-14 | |
| 2020-12-31 | $9,681,000 | 700,000 | Shares | Sole | 2021-02-12 | |
| 2020-09-30 | $8,175,150 | 555,000 | Shares | Sole | 2020-11-12 | |
| 2020-06-30 | $6,093,750 | 375,000 | Shares | Sole | 2020-08-12 | |
| 2020-03-31 | $5,949,100 | 410,000 | Shares | Sole | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||